Question

multiple - choice question
what does the mrna codon uaa code for?
cys
tyr
stop

Explanation:

In molecular biology, mRNA codons are triplets of nucleotides that code for specific amino acids or serve as signals. The codon UAA is one of the three stop codons (along with UAG and UGA). Stop codons do not code for an amino acid but instead signal the termination of protein synthesis. Cys (cysteine) is coded by UGU and UGC. Tyr (tyrosine) is coded by UAU and UAC.

Answer:

C. stop